// References are aliases of memory.


#include <iostream>
#include <cstdlib>

using namespace std;


int main( void ) {
	int a = 10;
	int& b = a;

	b = 20;
	cout << "a = " << a << "\n" << "b = " << b << endl;
	cout << "&a : " << &a << "\n" << "&b : " << &b << endl;


	return 0;
}




